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as there are some german messages into the thread please use the german forum instead this one. Additional tools will maybe collect also german output and so most people inside here are not able to read the content, thank you for understanding:

Additional run the support tools and provide the following output files:

dcdiag /v /c /d /e /s:dcname >c:\dcdiag.txt
repadmin /showrepl dc* /verbose /all /intersite >c:\repl.txt ["dc* is a place holder for the starting name of the DCs if they all begin the same (if more then one DC exists)]
dnslint /ad /s "DCipaddress" (http://support.microsoft.com/kb/321045)

As the output will become large, DON'T post them into the thread, please use Windows Sky Drive(with open access!) and add the link from it here. Also the /e in dcdiag scans the complete
forest, so better run it on COB.

Best regards Meinolf Weber Disclaimer: This posting is provided "AS IS" with no warranties or guarantees , and confers no rights.

60,000 character limit and about 100 of them are German. Of the German characters it boils down to event source
NTFRS event 13516. As an American it would be much easier to post and get support here. If everyone is cooperative as you, then I was wrong. :-(

If your tools generate excessive German messages I will of course reconsider.

it is a friendly hint to use the german forum, the support tools mostly provide english output. But please understand that error messages in the event viewer are complete german on a german system.

If you post it here we will have a look, but you have to live with less help if people are not able to understand the used language. So please upload the requested files, post the link to them and we can start.

Best regards Meinolf Weber Disclaimer: This posting is provided "AS IS" with no warranties or guarantees , and confers no rights.

Event Type: Warning
Event Source: NETLOGON
Event Category: None
Event ID: 5807
Date: 12/13/2010
Time: 11:53:26 PM
User: N/A
Computer: AN-DC-01
Description:
During the past 4.01 hours there have been 3 connections to this Domain Controller from client machines whose IP addresses don't map to any of the existing sites in the enterprise. Those clients, therefore, have undefined sites and may connect to any Domain
Controller including those that are in far distant locations from the clients. A client's site is determined by the mapping of its subnet to one of the existing sites. To move the above clients to one of the sites, please consider creating subnet object(s)
covering the above IP addresses with mapping to one of the existing sites. The names and IP addresses of the clients in question have been logged on this computer in the following log file '%SystemRoot%\debug\netlogon.log' and, potentially, in the log
file '%SystemRoot%\debug\netlogon.bak' created if the former log becomes full. The log(s) may contain additional unrelated debugging information. To filter out the needed information, please search for lines which contain text 'NO_CLIENT_SITE:'. The first
word after this string is the client name and the second word is the client IP address. The maximum size of the log(s) is controlled by the following registry DWORD value 'HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Netlogon\Parameters\LogFileMaxSize';
the default is 20000000 bytes. The current maximum size is 20000000 bytes. To set a different maximum size, create the above registry value and set the desired maximum size in bytes.

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

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